Former Enron executive Richard Causey has started serving his five-and-a-half year prison sentence.
He was sent to prison for his role in the company's scandalous collapse.
Causey -- who turns 47 next week -- reported Tuesday to the Bastrop Federal Correctional Institution, a low- and minimum-security prison about 30 miles southeast of Austin.
Bob Mace, one of Causey's attorneys, says he and Causey's wife, Elizabeth, accompanied him to the prison. Causey's two children, 18 and 20 years old, were not present.
Mace would not discuss other details about the event.
Causey is Enron's former chief accounting officer. He pleaded guilty to securities fraud in 2005 shortly before he was scheduled to be tried with Enron founder Kenneth Lay and former Chief Executive Jeffrey Skilling on conspiracy, fraud and other charges related to the company's collapse.
Causey admitted that he and other senior Enron managers made various false public findings and statements.